微波-H_2O_2-膨胀石墨协同催化氧化处理甲基橙废水  

Treatment of Methyl Orange Wastewater by Synergistic Catalytic Oxidation Process with Microwave-H_2O_2-Expanded Graphite

作　　者：占昌朝[1,2] 严平[1] 曹小华[1,2] 廖庆文[1] 谢亚威[1] 

机构地区：[1]九江学院化学与环境工程学院,江西九江332005 [2]浙江工业大学化学工程J亏材料学院,浙江杭州310014

出　　处：《化工环保》2011年第5期397-401,共5页Environmental Protection of Chemical Industry

基　　金：江西省自然科学基金项目(2009GQH0053);江西省教育厅科技基金项目(GJJ11613)

摘　　要：为了研究膨胀石墨、微波和H2O2在催化氧化体系中的协同作用,采用微波法制备膨胀石墨,通过单因素条件实验,研究了微波、H2O2和膨胀石墨协同催化氧化法处理甲基橙废水工艺,探讨了各种因素协同作用对废水脱色效果的影响。实验结果表明,微波-H2O2-膨胀石墨氧化体系能高效快速地降解废水中的甲基橙,在50 mL初始pH为4、质量浓度为20 mg/L的甲基橙废水中,膨胀石墨加入量为6 g/L、微波辐射时间为9 min、微波辐射功率为259 W、H2O2加入量为1 mL/L的最佳处理工艺条件下,甲基橙废水的脱色率达到了97.9%,说明微波、H2O2和膨胀石墨体系对甲基橙降解效果明显,产生了协同效应。In order to explore the synergetic effect of expanded graphite, microwave and H202 in the catalytic oxidation system, the expanded graphite was prepared by microwave process and the treatment of methyl orange wastewater by synergistic catalytic oxidation process with microwave - H2 02 - expanded graphite was studied through single factor experiments. The factors affecting the wastewater decoloration were also discussed. The experimental results show that methyl orange in the wastewater can be degraded efficiently and rapidly in the microwave -H202 -expanded graphite system. Under the optimum process conditions of wastewater volume 50 mL, wastewater pH 4, methyl orange mass concentration 20 mg/L, expanded graphite dosage 6 g/L, microwave radiation time 9 min, radiation power 259 W, H202 dosage 1 mL/L, the decoloration rate of the wastewater are 97.9%. It indicates that microwave -H202- expanded graphite system has a good synergistic effect on methyl orange degradation.

关 键 词：微波 膨胀石墨 甲基橙 协同作用 催化氧化 废水处理 

分 类 号：X786[环境科学与工程—环境工程]